Heel engaging device



g 27, 1940- J. J. HENTHORN ETAL HEEL ENGAGING DEVICE Filed July 15, 1958 A/l/f/VTURS.

Patented Aug. 27, 1940 UNITED STATES HEEL ENGAGING DEVICE James J. Henthorn, Camden, N. J., and John W.

Ashley, Beverly, Mass, as'signors to United Shoe Machinery Corporation, Borough of Flemington, N. J., a. corporation of New Jersey Application July 15, 1938, Serial No. 219,360

10 Claims.

In machines for operating upon the heels of shoes, as those by which said heels are attached, there is customarily employed forholding the heel in place upon the heel-seat of a shoe for the insertion of the attaching nails, a device in the form of a fork for engagement with the opposite sides of the rear ofthe heel. To protect the material which covers the heel from being marred by the fork, said fork commonly has applied to the abutment-surfaces of its arms strips of leather or the like, secured in place by clamping bars and screws. Upon these strips dirt may accumulate, which will soil or roughen the heel-cover. Further, if a change is made in the covering material of the heels from one color to another, as from black to white, the abutment-strips will transfer the darker color which it has gathered from the work to the lighter heel-covering and deface it. It becomes necessary not infrequently to change the strips, and an object of this invention is to provide for the presentation to the work of fresh contact-surfaces, this being accomplished speedily and with little effort on the part of the operator.

.25 For the attainment of this object, this improved heel-engagin'g device has a body-portion in the form of a fork with opposite arms, the

abutment-surfaces having extending over them a strip or strips of flexible material. With each ,30 abutment-surface is associated means for securing one extremity of the strip, while the opposite extremity is engaged by means by which it may be tensioned. The securing means may consist of a slot situated at one side of the surface and through which the end of the strip is passed, and

the tensioning force may be applied by a rotatable roll having means for retaining it against reverse rotation, as by a toothed wheel engaged by a detent. Such an organization may be employed usefully in two ways-it gives means by which soiled strips may quickly be detached and replaced by other strips, or the strips may be drawn from such asupply that fresh work-engaging surfaces thereof may be presented successively to the work. In the second instance, the supply is preferably carried by a roll rotatable at one side of the abutment-surface, while at the opposite side is areceiving and tensioning roll. Each roll may be retained in the position for r0- tation in one direction only by a toothed wheel and co-operating detent. To make a new engaging surface effective, it is only necessary to free the supply-roll for rotation and turn the receiving roll, until the strip is stretched across the 65 abutment-surface.

, bearing-arms 34, 34, lying at their'ends.

(Cl. 1---32) A A particular embodiment of the invention and a modifying elementthereof is illustrated'in the accompanying drawing, in'which, fl

Fig. 1 shows the improved heel-engaging de*- vice in place upon a heel-attaching machine; 1 Fig. '2 is an enlarged plan, viewed at an angle from the left of Fig. 1; Figs. -3 and 4 are transverse sections taken, respectively, along the lines IIIIII and IV-'IV ofFig.2,and w ,1

Fig. 5 shows in perspective a strip-securing element which may be substituted for one ofthe rolls of the preceding figures. r

At It appears the body-portion of a fork for engagement with the back of a heel to he at- 15 tached, this being secured at l2 to the rear slide M of such a hold-down D as is disclosedin Letters Patent ofthe United States No. 2,040,885, Standish, May 19, 1936. The tread-abutment of the hold-downis shown at 16. This hold-down 20 is adapted to apply. pressure to a heel H, p0si.- tioned upon theheel-seat of a shoe S supported upon a 'jack J, to resist the displacing effect of nails N when they are inserted by thev elevation of drivers [8 reciprocable within the jack. From 35 the body llldiverge arms 20, 20, the opposite rounded abutment-surfaces 22, 22 of which lie "at the sides of the rear of the heel H. The surfaces 22, 22 may be. cushioned by havingstretched over them sheets 24 of some such durable, yield- 0 able material as elk hide. The opposite ends of each sheet are shown as attached to reduced edges 26 of thearms by being clamped between opposed bars 28 and 39, which are secured to the edges of the arms by screws 32. The bars form 5 the bodies of brackets which also have spaced In these bearings of the bars 28 and 30, respectively, are rotatable rolls 36 and 38, either of which may be considered as a receiving roll or a supply-roll for an "elongated strip 40 of flexible material; This strip may be of leather of a character and color suitable for the work in hand. Each of the rolls is slotted longitudinally at 2 to receive and se- -cure against accidental withdrawal one extremity of the strip. Fast upon the outer end of each roll is a finger-piece M by which it may be rotated. The finger-pieces of the rolls of each arm are preferably located atdifierent distances from the adjacent bearing-portion 34 to facilitate their 5 manipulation. Upon the opposite extremity of each roll from its finger-piece is fixed a toothed wheel 46, the teeth associated with the rolls '36 and 38 being inclined at opposite angles. .As viewed from the outer ends, the rolls 36 are free to be turned anticlockwise, while the rolls 38 may be rotated in the opposite direction, each being normally held against reverse rotation by a detent 48. The shank 5!] of this detent is movable in a bore in the corresponding bracket-bar, being acted upon by a spring 52, which urges it outwardly.

Let it be assumed that there is upon each of the rolls 38 a supply of the strip 40 consisting of a number of convolutions, the end of the inner turn From the outer turn-,---

being held in the slot 42. the strip passes over the cushion 24 on the abutment-surface 22 and then over and through the slot in the roll 36. 44 of the last-mentioned roll, the strip may be tensioned'properly. If it is desired to present to the work over the surface 22 an unused portion of the strip 40, the roll 38 may be freed by depressing its detent 48, conveniently by engaging a projecting head 54 upon the shank 50, and the roll 361turnedby its finger-piece. Thiswill cause the stripto be unrolled, and when the required unused portion isover the abutment-surface 22, the detent of the roll 38 is released, and the strip is made. taut by a further rotation of the roll 36. lf instead of thus taking successive; portions of the strip from a supply, one chooses to remove from the, device and renew a shorter section, the used strip may be slackened by releasing the detent of one roll, until an end of the strip can be withdrawn. from the roll-slot 42, and then the 'otherend istremoved from the slot inthe opposite roll. The extremities of another strip may then be inserted in the slots and tensioned by rotation of one of the rolls. If the device is to be used. in the manner just indicated, the structure maybe simplified without impairing its convenience, by substituting upon each fork-arm for one of the brackets 32, 34 withiits roll, a plate 56, as is illustratedin Fig. 5 of the drawing, in which plate is longitudinal strip-receiving slot 58. "This plate is attached to the edge 26 of the arm 20 by thesame screws 32 as were employed for the. bracket. The plate secures one end of the short section of the strip, and the roll which remains in place applies tension to the opposite end,'asialready described.

Having described our invention, whatwe claim as newand desire to secure by Letters Patent of the United States is: l

l. A heel-engaging device comprising a body provided with diverging portions eachhaving an abutment-surface, a strip of. flexible material extending overthe abutment-surface of each. diverging portion and individual thereto, means for securing one extremity of each strip against movement upon the device, and means movable to apply tension to the opposite extremity of each :strip; 2

2.A heel-engaging device comprising a body provided with diverging portions each having an abutment-surface, a strip of flexible material extending over. the abutment-surface of each diverging portion and individual thereto, means for securing one extremity of each strip against By turning the finger-piece movement upon the device, a rotatable member to which the opposite extremity of the strip is attached, and means arranged to turn said member to tension the strip and to retain said strip under tension.

3. A heel-engaging device provided with diverging portions at one side of each of which is a s1ot,a slottedroll rotatable 'at'theopposite side of each portion, means for retaining the roll in the position to which it may be rotated, and strips of flexible material extending at their ends through the slots and passing therebetween over the opposite faces of the diverging portions.

4. A heel-engaging device comprising a body provided with diverging portions, each of said portions being provided with strip-securing means, and a strip-holding roll rotatable upon each of the portions at the side opposite the securing means.

5. A heel-engaging device comprising a body providedwith diverging'p ortions, a supply-roll rotatable atone side of each of the portions and individual thereto,,-a receiving roll cooperating with each supply-roll and rotatable at the opposite sideof eachportion, and means for retaining each;r o1l,against rotation. v g- ,6. In a heel-hold-down, afork presenting opposite abutment-surf aces to the. heel, a, cushion uplonv each abutment-surface, -,and, mean s arranged to tension a strip of, flexible material over each cushion. I

i 7., In a heel-hold-dowma fork presenting opposite abutment-surfaces to the heel, therebeing slot at one side of, each surface a roll rotatable at the opposite side of the surface, a toothed wheel and co-operating detent for retaining the roll in the position to which; it may be rotated, ,and a strip of flexible material extending through the slot and about the roll.

8. In a heel-h01ddown, a fork presenting opposite. abutment-surfaces, to the. heel, a stripholding rollrotatable at one sideof each abutment-surface, a strip-receiving roll rotatable at the opposite side of each abutment-surface, and

a toothed Wheel and;coeoperatingdetent for retaining each roll inthe;position to which it is rotated. i

.. 9. In a .hee1-ho1ddown, a fork having diverg- .ing arms, slotted member secured at one side of each arm, a bracket secured at the opposite side ofeach arm, a roll rotatable inthe bracket and provided With a toothed portion, a detent yieldable in the, bracket and engaging the teeth, and a, strip of, flexible; material passingthrough the slotand about the roll. a

M ,10. In a heel-hold-down, stark having diverging arms, brackets secured to the opposite the rolls of each arm.

JAMES J. HENTHORN. JOHN W. ASHLEY, 

